migrated server, now cant serve secure

I have two servers running for comparison sake…one is slow, hence the need to migrate.

v3.comparepower.com works securely. It is being served from IIS7.

comparepower.com serves fine non-https, but when I used HTTPS, the header breaks, things don’t load, etc. What’s crazy to me is that this is an imported page, with the same SSL installed on the new server, etc. I just cant wrap my head around it. Plus, for exclusivity on this plugin does not take a https inbound and divert it to http. I have already tried changing wordpress url from http to https, to no avail.